Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7146923 | Sensors and Actuators B: Chemical | 2014 | 10 Pages |
Abstract
In the present work, we developed a miniaturized tungsten coil device, a cataluminescence gas detector for alcohols and ketones using zinc oxide-doped tin dioxide (SnO2:ZnO) nanowires as the sensing materials. SnO2:ZnO nanowires were controllably deposited on tungsten coil which was coated with Au/reduced graphene oxide composites via an atmospheric pressure chemical vapor deposition process. This SnO2:ZnO nanowires-based gas sensor has fast and sensitive response to alcohols and ketones with a wide range. The response time and recovery time of the present sensor for ethanol were 7 s and 40 s, respectively. The linear range of ethanol was 11.7-204.7 μg mLâ1 with a detection limit of 11.0 μg mLâ1 (S/N = 3). In addition, it has relatively good reproducibility, and its linear response to alcohols and ketones makes it to be promising in practical application.
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Authors
Lingzhu Yu, Hongjie Song, Yurong Tang, Lichun Zhang, Yi Lv,